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fix: use LONGBLOB

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This commit is contained in:
Jason Song 2022-12-12 13:06:58 +08:00
parent 7a34d37aad
commit 86d6598a54
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3 changed files with 16 additions and 2 deletions
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2
models/actions/task.go
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@ -50,7 +50,7 @@ type ActionTask struct {
LogInStorage bool // read log from database or from storage
LogLength int64 // lines count
LogSize int64 // blob size
LogIndexes *LogIndexes `xorm:"BLOB"` // line number to offset
LogIndexes *LogIndexes `xorm:"LONGBLOB"` // line number to offset
LogExpired bool // files that are too old will be deleted
Created timeutil.TimeStamp `xorm:"created"`

14
models/actions/utils.go
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@ -29,6 +29,20 @@ func generateSaltedToken() (string, string, string, string, error) {
return token, salt, hash, token[:8], nil
}
/*
LogIndexes is the index for mapping log line number to buffer offset.
Because it uses varint encoding, it is impossible to predict its size.
But we can make a simple estimate with an assumption that each log line has 200 byte, then:
| lines | file size | index size |
|-----------|---------------------|--------------------|
| 100 | 20 KiB(20000) | 258 B(258) |
| 1000 | 195 KiB(200000) | 2.9 KiB(2958) |
| 10000 | 1.9 MiB(2000000) | 34 KiB(34715) |
| 100000 | 19 MiB(20000000) | 386 KiB(394715) |
| 1000000 | 191 MiB(200000000) | 4.1 MiB(4323626) |
| 10000000 | 1.9 GiB(2000000000) | 47 MiB(49323626) |
| 100000000 | 19 GiB(20000000000) | 490 MiB(513424280) |
*/
type LogIndexes []int64
func (indexes *LogIndexes) FromDB(b []byte) error {

2
models/migrations/v-dev.go
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@ -121,7 +121,7 @@ func addActionsTables(x *xorm.Engine) error {
LogInStorage bool // read log from database or from storage
LogLength int64 // lines count
LogSize int64 // blob size
LogIndexes *[]int64 `xorm:"BLOB"` // line number to offset
LogIndexes *[]int64 `xorm:"LONGBLOB"` // line number to offset
LogExpired bool // files that are too old will be deleted
Created timeutil.TimeStamp `xorm:"created"`